From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964819Ab3BMRYi (ORCPT ); Wed, 13 Feb 2013 12:24:38 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:5848 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934457Ab3BMRYg (ORCPT ); Wed, 13 Feb 2013 12:24:36 -0500 X-Authority-Analysis: v=2.0 cv=bJmU0YCZ c=1 sm=0 a=rXTBtCOcEpjy1lPqhTCpEQ==:17 a=mNMOxpOpBa8A:10 a=btn4o-XVpwEA:10 a=5SG0PmZfjMsA:10 a=Q9fys5e9bTEA:10 a=meVymXHHAAAA:8 a=5m8K6IL_vW8A:10 a=9fWZkWeYtoac_3kBRgwA:9 a=PUjeQqilurYA:10 a=rXTBtCOcEpjy1lPqhTCpEQ==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 74.67.115.198 Message-ID: <1360776274.23152.7.camel@gandalf.local.home> Subject: Re: [PREEMPT RT] SLUB and split softirq lock for v3.2-rt From: Steven Rostedt To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, Carsten Emde Date: Wed, 13 Feb 2013 12:24:34 -0500 In-Reply-To: <1360771932-27150-1-git-send-email-bigeasy@linutronix.de> References: <1360771932-27150-1-git-send-email-bigeasy@linutronix.de> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.4.4-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2013-02-13 at 17:11 +0100, Sebastian Andrzej Siewior wrote: > 3.2-rt is a long term supported kernel, which lacks two RT features > from 3.6: SLUB support and the split softirq lock implementation. > > SLUB has a way better performance than SLAB on RT and the split > softirq lock implementation is necessary especially for realtime > networking applications. > > The following patch series backports these features to 3.2-rt. > > Steven, could you please apply these patches to a separate > 3.2-rt-features branch? Is it possible to separate these two features into two different patch sets. I would like to apply the softirq changes first, and then apply the slub changes. Although it looks as though the first half is softirq only 1-8, and the second half is slub related 9-16. If that's the case, I'll just pull in 1-8 first, play with them, and then do 9-16. Thanks, -- Steve